Understanding Single Displacement Reactions

What happens in a single displacement reaction involving metals?

• A metal ion replaces a non-metal ion.

• A less reactive metal is displaced by a more reactive metal.

• A non-metal replaces a metal ion.

• Two metals exchange places without any reactivity order.

What was the initial color of the solution before the reaction started?

• Blue

• Colorless

• Green

• Yellow

What type of reaction is demonstrated in the experiment?

• Double displacement reaction

• Acid-base neutralization

• Combustion reaction

• Single displacement reaction

Which metal was used to displace silver from its compound?

• Gold

• Copper

• Iron

• Zinc

What indicates that copper is more reactive than silver in this experiment?

• Copper dissolves completely.

• Silver is displaced from its compound.

• The solution turns green.

• Silver turns into gold.

How long did it take to observe significant changes in the reaction?

• 30 minutes

• 15 minutes

• 45 minutes

• 60 minutes

What forms on the copper wire as a result of the reaction?

• Gold particles

• Copper crystals

• Silver metal

• Iron filings

What was the final color of the solution?

• Green

• Yellow

• Blue

• Red

What evidence is there of a chemical reaction occurring?

• Increase in light intensity

• Decrease in temperature

• Formation of gas bubbles

• Change in solution color

What happens to the copper in the reaction?

• It precipitates as a solid.

• It remains unchanged.

• It dissolves forming copper ions.

• It turns into silver.